minor formating fixes

[LylaAtta123]

Purpose/implementation Section

What changes are being implemented in this Pull Request?

What was your approach?

What GitHub issue does your pull request address?

Tell potential reviewers what kind of feedback you are soliciting.

New Content Checklist

• [ ] New content/chapter is in an Rmd file with this kind of format and headers.

• [ ] New content/chapter contains Learning Objectives and are in the correct format.

• [ ] Bookdown successfully re-renders and any new content files have been added to the _bookdown.yml.

• [ ] Spell check runs successfully in Github actions style-n-check).

• [ ] Any newly necessary packages that are needed have been added to the Dockerfile and image.

• [ ] Images are in the correct format for rendering.

• [ ] Every new image has alt text and is in a Google Slide.

• [ ] Each slide is described in the notes of the slide so learners relying on a screen reader can access the content. See https://lastcallmedia.com/blog/accessible-comics for more guidance on this.

• [ ] The color palette choices of the slide are contrasted in a way that is friendly to those with color vision deficiencies. You can check this using Color Oracle.

[github-actions[bot]]

No spelling errors! :tada: Comment updated at 2022-03-22 with changes from 4edf2a3b80bcb2bbc8f986bba78e76e98fa8e5a2

[github-actions[bot]]

Re-rendered previews from the latest commit:

• See preview of Bookdown here
• See preview of Coursera/Leanpub version here
• Download the preview of .docx file

Updated at 2022-03-22 with changes from 4edf2a3b80bcb2bbc8f986bba78e76e98fa8e5a2

[carriewright11]

Thanks @LylaAtta123 !